Fixed issue #4233. Changed semantic of _fileio.FileIO's close() method on file objects with closefd=False. The file descriptor is still kept open but the file object behaves like a closed file. The FileIO object also got a new readonly attribute closefd. Approved by Barry Backport of r67106 from the py3k branch

/* This module provides the necessary stubs for when dynamic loading is
   not present. */

#include "Python.h"
#include "importdl.h"


const struct filedescr _PyImport_DynLoadFiletab[] = {
	{0, 0}
};